| Brand | Wone |
| Model NO. | JN15-12 indoor high-voltage AC grounding switch |
| Rated voltage | 12kV |
| Rated short circuit breaking current | 80KA |
| 相间距 | 210mm |
| Series | JN15-12 |
Description
The grounding switch refers to a mechanical grounding device that releases the electrostatic charge of the equipment to be repaired and the circuit and ensures the personal safety of the maintenance personnel during power failure. It can withstand a certain period of time under abnormal conditions such as a short circuit, but does not pass through the load current under normal conditions. It is usually part of the disconnector.
Industry applications
It is suitable for power systems with AC 50Hz of 12kV and below. It can be used for grounding protection during the maintenance of high-voltage electrical equipment, and can also be used with various types of high-voltage switchgear.
Features
Ambient temperature: -15°C~+40°C.
Altitude: 1000m and below.
Relative humidity: daily average not more than 95%, monthly average not more than 90%.
The daily average value of water vapor pressure is not more than 2.2 kPa.
The monthly average water vapor pressure is not more than 1.8 kPa.
There is no fire, explosion hazard, serious pollution, chemical corrosion and severe vibration.
Our company has developed products suitable for high altitude (E≥230mm, altitude up to 4000m) for users to choose.
Technical parameters
| Serial number | Name | Unit | Data | ||
| 1 |
Rated voltage | KV |
12 |
||
| 2 | Rated short-time withstand current | KA |
31.5 | 40 | |
| 3 | Rated short-circuit duration | S |
4 |
2 |
|
| 4 | Rated peak withstand current | KA |
80 | 100 | |
| 5 | Rated short-circuit 3-off current | KA | 80 |
100 | |
| 6 | Center distance between phases | mm | 150、210、275 |
||
| 7 Rated insulation level |
1min power frequency withstand voltage (RMS) | KV |
42 |
||
| Lightning impulse withstand voltage (peak) | 75 |
||||
Dimension
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